Job 40:16

The words "its strength is in its cover" [mean] its strength and vigor are precisely in the animal itself. Animals usually take shelter in different places, but [the author] says this animal does not need a shelter at all.

What is understood by the loins except the delight of the flesh? Hence the Psalmist also asks, saying: "Burn my loins." For if he had not known that the pleasure of lust resides in the loins, he would by no means have asked that they be burned. Hence, because the power of the devil has prevailed over the human race especially through lust, it is said of him by the voice of the Lord: "His power is in his loins." Therefore he who eats the Passover ought to have his loins girded, so that he who celebrates the solemnity of resurrection and incorruption may no longer be subject to corruption through any vices, may subdue pleasures, and may restrain the flesh from lust.

His strength is in his loins, and his force is in the navel of his belly. 20. The places for the seed of coition are said to be in the loins with men, but in the navel with women. For hence it is that the Truth says to His disciples; Let your loins be girded about. [Luke 12, 35] Hence Peter, when keeping away lust from the heart, admonished, saying, Girded up in the loins of your mind. [1 Pet. 1, 13] Hence Paul, when saying that the priesthood of Levi was tithed by the sacrifice of Abraham in the time of Melchisedec, said, in shewing where Levi was then concealed in the body of his father; For he was yet in the loins of his father. But that the seed-vessel of lust is with women contained in the navel, the Prophet witnesses, who, reproving the wantonness of Judaea, under the character of a prostituted woman, says; In the day of thy birth thy navel was not cut. [Ez. 16, 4] For to cut the navel in the day of birth, is to cut off the lust of the flesh at the time of conversion. For since it is difficult to correct evil beginnings, and to mould into a better shape things that have once been shapen amiss, Judaea is blamed from her birth, as having, while born of God, retained her navel unsevered, because she lopped not off the loosenesses of lust. Because therefore both sexes are grievously overcome by the infirmity of lust, through the power of the devil, his strength is both said to be in his loins, against men, and his force in his navel, against women. 21. But why, when He had first mentioned this Behemoth as eating hay, did He subjoin the fatal effects of lust, as the first arguments of his deception? Except that it is plain to all, that after pride has once seized the spirit of a man, he immediately stretches forth to the pollution of the flesh. Which we observe even in the first man and woman; who, by covering their shameful parts, after the commission of pride, plainly shewed that after they had endeavoured in themselves to grasp at high things within, they presently were subject in the flesh to what bringeth shame without. This Behemoth therefore, who rages insatiably, and seeks to devour the whole man at once, at one time exalts his mind to pride at another corrupts his flesh with the pleasure of lust. But his strength is well said not to be in the loins or the navel of them who are overcome; but, his strength is in his loins, and his force is in the…